20|09|2012

Composer Joe Morris has published a book on free
music, which focuses on four key methodologies: Unit Structures,
Harmolodics, Tri-Axium Theory and European free improvisation. The
book, titled Perpetual Frontier: The Properties Of Free
Music also includes Q&A's with Joe McPhee, Alex Ward,
Matthew Shipp, Ken Vandermark, Nate Wooley, William Parker, Mary
Halvorson, Nicole Mitchell, Katt Hernandez, and others.

Read an essay written by Morris on the book
here, ordering details are here.